In Hooke's Law, is the elastic constant (k) meant to stay the same number no matter what the force is?
Im doing a physics assignment where you have to find the elastic constant of a certain rubber material we were given. Then we are meant to change the width and see the difference in the elastic constant compared to the different widths.
But when i tried using different forces on one width i got a massive range of answers for elastic constant. Is that meant to happen. Here is the equation to remind you guys.
k = F/x
k = elastic constant
F = Force
x = Amount of stretch
- Anonymous1 decade agoFavorite Answer
k will stay the same until it passes a certain point which destroys the elasticity of an object and it will not return to normal k the new k will be weaker
also the larger your width it will have a MUCH greater k value
- jgouldenLv 71 decade ago
In Hooke's Law, k is the spring constant; it doesn't change. This isn't a particularly accurate model for many elastic materials. If you're using, say, rubber bands, try to keep the stretch distance from getting too large.